templeton



Sept. 24, 1963 J. B. TEMPLETON- 3,104,764

HOISTING APPARATUS Filed Oct. 17, 1961 I I 2 Sheets-Sheet 1 INVENTOR g I ,JOhn B. Templeton a? W BY W h United States Patent 3,104,764 HOISTWG APPARATUS John B. Templeton, 1000 Singleton Blvd, Dallas, Tex. Filed Oct. 17, 1961, Ser. No. 145,569 18 Claims. (Cl. 212145) This invention relates to hoisting apparatus and to a method for lifting or lowering extremely heavy loads with relatively light weight hoisting apparatus.

One object of this invention is to provide a hoisting apparatus comprising a conventional movable boom crane or dragline hoist and an auxiliary hoisting frame which is located remote from the conventional hoist but is cooperable therewith for supporting a heavy load whereby loads exceeding the normal lifting capacity of the conventional hoist may be lifted and shifted.

Another object is to provide a hoisting apparatus which includes a conventional hoist, such as a vehicle-mounted dragline hoist or anchored crane hoist equipped 'with a movable boom or A frame and an auxiliary hoisting frame separate from the crane or vehicle-mounted dragline hoist but connectable and cooperable therewith for lifting heavy loads.

Still another object is to provide a hoisting apparatus including a movable boom and an auxiliary hoisting frame which is pivotally mounted on a support independent of and interconnectable with the movable boom to cooperate therewith in lifting or lowering loads whereby much greater loads may be hoisted by the hoist and the auxiliary frame than by the movable boom operating independently.

Still another object is to provide a hoisting apparatus including a conventional vehicle mounted hoist having a movably mounted boom, an auxiliary hoisting frame located remote from said hoist and adapted to be pivotally mounted at its lower end on a supporting surface for movement in substantially vertical plane, means for connecting the auxiliary hoisting frame to the movable boom for rendering them movable together whereby the hoisting frame is controlled in its pivotal movement by the movement of the boom, and hoisting tackle secured to the upper end of the auxiliary hoisting frame and controlled in operation by the hoisting line of the vehicle-mounted hoist whereby the auxiliary hoisting frame is cooperable with the boom of the hoist for supporting a load lifted by the hoisting tackle.

A still further object is to provide an auxiliary hoisting frame which is interconnectable with a movable boom hoist and cooperable therewith for supporting a load so as to enable the hoist to lift loads which exceed the lifting capacity of the boom when operating independently of the auxiliary hoisting frame.

A still further object is to provide an auxiliary hoisting frame which is adapted to be pivotally mounted on a supporting surface for pivotal movement in a substantially vertical plane and is provided with means for supporting hoisting tackle thereon which include-s the hoisting line of a movable boom hoist for lifting or lowering a load, and means for conneo' g the auxiliary hoisting frame to the movable boom of the hoist for rendering them normally movable together, and a tackle connecting the upper end of the frame with the hoist whereby the auxiliary hoisting frame is enabled to lift loads which far exceed the lifting capacity of the movable boom when operating independently.

A still further object is to provide a new and improved method for loading and unloading heavy loads with relatively light weight hoisting apparatus, such as dragline equipment.

A still further object is to provide a new and improved method for moving heavy loads with -a relatively light 3,104,764 Patented Sept. 24, 1963 weight hoist, such as a crane or vehicle-mounted dragline hoist having a movable boom or A frame, by supporting the greater part of the load on an auxiliary hoisting frame and controlling the movements of the auxiliary hoisting frame and the load by the dragline hoist.

Additional objects and advantages of the invention will be readily apparent from the reading of the following description of the method of the invention of a device for carrying out the method, and reference to the accompanying drawings thereof, wherein:

FIGURE '1 is a schematic view of the hoisting apparatus of this invention in position for lifting a load from a truck and which is movable to a position as indicated by dotted lines for placing the load at a desired location alongside of the truck;

FIGURE 2 is a front view of the auxiliary hoisting frame in the hoisting apparatus of this invention;

FIGURE 3 is a fragmentary front view of a U-shaped guide section which is telescopically receivable in the auxiliary hoisting frame and which interconnects the boom and the auxiliary hoisting frame;

FIGURE 4 is a sectional View, taken along the line 4-4 in FIGURE 2, of the auxiliary hoisting frame;

FIGURE 5 is an exploded view of the mounting attachment for mounting the stationary block of a block and tackle assembly on .the auxiliary hoisting frame; and

FIGURE 6 is a fragmentary view showing the connection between the end of the movable boom and the guide section which interconnects the boomand the auxiliary hoisting frame for rendering them movable together.

Referring now particularly to the drawings, a hoisting assembly 10 embodying the apparatus of the invention is shown in position for lifting a load L from the bed of a truck T. The assembly includes a movable hoist 11 mounted on a tractor or vehicle V and having the usual boom 12 and control cable 13 for raising and lowering the outer end of the boom by pivoting the boom about its pivotal connection 14 with the tractor. While a vehiclemounted type of dragline hoist is illustrated in the drawings, it is to be understood that the term dragline hoist as used herein is intended to include any type of hoist provided with a movable boom or A-frame. The control cable 13 of the hoist 11 is attached to the boom at the outer end thereof and to a suitable draw means (not shown), such as a cable drum and drive motor located on the vehicle V, whereby the cable 13 is adapted to control the movement of the boom. The hoisting line 15 of the dragline is secured at one end to a suitable draw means (not shown) on the vehicle and reeved about a sheave 16 which is rotatably mounted on the outer end of the boom in conventional manner. The hoisting line is also reeved about the sheaves of a block and tackle assembly 19 which is carried on an auxiliary hoisting frame 20 and one end of the line is secured to one of the blocks of the block and tackle assembly. In operation, the hoisting line 15 lifts or lowers a load and the control cable 13 controls pivotal movement of the boom and the auxiliary frame which is interconnected with the boom to be movable therewith whereby the load may be moved either toward or away from the vehicle V.

The auxiliary frame 20 adapted to be utilized in conjunction with the boom 12 and the hoisting line 15 for supporting the load L is shown in FIGURE 1 pivotally supported at one end on the ground or supporting surface. The auxiliary hoisting frame is constructed in the form of a truss framework which provides strength and rigidity to the auxiliary frame, and is formed with a front section or portion 20a and a strengthening back structure 20b. The lower end of the frame is a transverse member, preferably in the form of a pipe 21, which is laid fiat upon the planar upper surface of a supporting base 22 and secured thereto by U-bolts 23 which are looped over the pipe 21 and secured by their lower ends to the supporting base which may be a dragline mat. The base 22 is preferably a solid beam of wood, steel, or the like, which is provided with an upper planar surface.

It is to be understood, of course, that for sufficiently hard surfaces, as shown in FIGURE 1, the base 22 may be eliminated. In such instances, the frame 20 may be held in place on the supporting structure in any suitable manner, such as by staples which may be looped over the pipe 21 with their ends secured to the supporting surface or by merely lodging the pipe 21 against anchored posts, or the like, in the supporting surface.

A pair of parallel spaced tubular sleeve members 25 and 26 at the sides of the framework are secured, as by welding, at their lower ends to the end pipe 21 and extend normally thereto. The tubular sleeves 25 and 26, which may be formed of suitable sized pipe, are joined adjacent their upper end by a cross arm 27 which forms one end of the truss framework 20 and like the end pipe 21 is preferably an extra strong length of pipe. The upper ends of the tubular members are open.

A pair of T-shaped strengthening beams 40 are provided along the forward surfaces of each of the tubular sleeves 25 and 26. Each beam is comprised of a longitudinal section 41, which is welded along its length to the tubular sleeve of substantially equal length therewith, and a flange section 42 which is formed at a right angle to the section 41 to form a T therewith. The beams 40 on each tubular sleeve are attached with their sections 41 disposed radially of the sleeve and parallel to the section on the other sleeve. Thus, the beams strengthen the sleeves against distortion and buckling, particularly in the plane of pivotal movement of the auxiliary hoisting frame.

The front portion of the auxiliary hoisting frame is further braced by a number of tie rods or cross braces 44 which may be formed of smaller diameter standard pipe extending transversely between the tubular sleeves 25 and 26 and jointed thereto at their ends by welding. The braces 44 are uniformly and equally spaced longitudinally of the tubular sleeves between their upper and lower ends.

Additional braces for the frame 20 are provided in the form of cable braces 45 which extend diagonally between the ends of each pair of adjacent transverse braces 44. The cables are attached at their ends to ears 46 which project inwardly and diagonally from the inner surfaces of the tubular sleeves 25 and 26 adjacent their junctions with the transverse braces. Each of the cable braces is provided with a jaw and eye turnbuckle 47 for adjusting cable tension of the brace. A pair of diagonal cable braces 45 are also provided between the lower end pipe 21 and the next adjacent transverse brace 44.

Between the crossarm 27 and the transverse brace 44 next adjacent thereto are provided a pair of angularly disposed pipe braces 47a attached by welding at their upper ends to the crossarm 27 and at their lower ends, respectively, to the tubular side sleeves 25 and 26 adjacent the uppermost transverse brace 44. These angular braces are joined to the crossarm at points which are equally spaced from opposite ends of the crossarm to provide a clearance between the upper ends of said angular braces.

In addition to the front portion 2011, the auxiliary hoisting frame 20 is preferably formed "with a truss reinforcing structure 20b which extends rearwardly of the front portion 20a. The reinforcing structure 20b comprises a pair of longitudinal beams 48 and 49 which are attached to the tubular sleeves 25 and 26 by the zigzag or angular braces 49a, and cross braces 44a and diagonal cable braces 45a similar to the braces 44 and 45 between the tubular sleeves join the beams 43 and 49 of the reinforcing structure 2011 in a strong unit. T-shaped reinforcing beam sections may be provided on the rear sides of the sleeves 25 and 26 diametrically opposite the beams 40 on the front sides of such sleeves, if desired, to further reinforce the sleeves. Of course, such beam sections would be disposed and extend only between the joinder of the ends of the angular braces 49 with the sleeves.

Thus, it will be apparent that the auxiliary hoisting frame 24 is similar in construction and form to a conventional truss bridge. It is to be understood, of course, that while a particular structure of the auxiliary hoisting frame is illustrated, it may be made in various other forms. An auxiliary hoisting frame, such as a single A frame provided with parallel tubular sleeves such as the tubular sleeves 25 and 26 may be satisfactory, particularly when less heavy loads are to be lifted. In some instances, an auxiliary hoisting frame which comprises only the front portion 20a of the frame 20 may be suitable.

A U-shaped collar member 50 is looped over the center of the crossarm 27 between a pair of stops 51 and 52 which are welded on the crossarm to prevent the collar from sliding along the cross arm. Arms 53 and 54 are pivotally supported on the collar 50 by a bolt 55 which extends through aligned apertures in the lower ends of the legs of the U-shaped collar and the upper ends of the arms 53 and 54 and is held by a nut 56. A tubular spacer member 57, sleeved over the shank of the bolt 55 between the arms 53 and 54, spaces the arms on the bolt.

The lower ends of the arms 53 and 54 are also provided with a bolt 58 for rotatably supporting a pulley block P which is inserted therebetween. The bolt 58 is threaded at one end for receiving a nut 59 whereby the pulley block is secured between the arms 53 and 54. It will thus be noted that the U-shaped collar 50 is pivotally mounted on the crossarm 27 for movement in a plane which is perpendicular to the crossarm and parallelto the tubular side sleeves 25 and 26 of the auxiliary hoisting frame, whereas the pulley block P, supported by the arms 53 and 54, is pivotally mounted on the bolt 55 for movement in a plane which is perpendicular to the plane of pivotal movement of the collar 50, thus providing for substantially universal swinging movement of the pulley block P. e

A guide section 60 for interconnecting the boom and the auxiliary hoisting frame whereby they are pivotally movable together is shown in FIGURE 3. The guide section, substantially of U-shape, comprises a crossarm 61 and a pair of cylindrical leg members 62 and 63. The legs 62 and 63 are of an external diameter which is slightly smaller than the internal diameter of the tubular sleeves 25 and 26 and are also provided with tapering lower ends 62a and 63a, respectively, whereby the legs are easily insertable into the tubular sleeves. The cross arm 61 of the guide section is formed of a pair of channel beams 64 and 65 which are disposed parallel and secured at their ends to the upper end portions of the legs 62 and 63 on opposite sides of the legs and with their web portions lying flat thereagainst. A pair of plates 66 and 67 are welded at the center of the crossarm against the upper and lower flanges, respectively, of the channel beams, and a bolt 68 extends through aligned apertures in the plates and through a hemispherical bearing 70 secured to the underside of the lower plate 67. The hemispherical hearing provides means for swingably securing the telescoping guide section 60 to the upper end of the movable boom of the hoist. Y

A bracket 71 is attached to the end of the movable boom and has a planar supporting surface or plate 72 which is disposed substantially perpendicularly to the longitudinal axis of the boom. The plate 72 may be supported on forwardly extending bracket arms, such as the arm 73, shown in FIGURE 6, which are attached to opposite sides of the boom and permit clearance therebetween for the sheave 16. The bracket plate 72 is suitably apertured for receiving the'bolt 68 which is threaded at its lower end for receiving a nut 75 for swingably retaining the hemispherical bearing of the guide section secured to the upper end of the boom. The nut 75 does not engage the underside of the plates 72 but is spaced therefrom to permit a limited axial movement of the bolt 68 through the plate 72, and an annular bearing ring 76 is disposed about the shaft of the bolt 68 and between the bracket and the hemispherical bearing 70. Thus, it will be apparent that the curved lower surface of the bearing 70 is swingably supported on the upper surface of the bearing ring 76. The apertures through the ring 76 and the bracket plate 72 are of sufficient size to permit pivotal movement of the bolt 68 therein as the guide section 60 pivots on the curved bearing surface of the hemisphere about the center of curvature of the hemisphere when the boom is either raised or lowered.

It will thus be apparent that, as shown in FIGURE 1, when the boom 12 is moved upwardly by the control cable 13 the U-shaped telescoping guide section slides outwardly of the sleeves of the auxiliary hoisting frame 20 while at the same time the firame 20 is tilted thereby to a more nearly vertical position. As the boom 12 is lowered, the telescoping guide section 60 is moved in wardly into the sleeves of the hoisting frame 20 While at the same time swinging the upper end of the hoisting frame outwardly with the end of the boom to a less vertical position.

The hoisting cable r15, which is secured at one end to the drum or the like of a suitable draw means of the hoist 11 is reeved about the boom pulley 16-, and is also reeved about a pulley block 80* and the pulley P which constitutes the traveling and stationary blocks, respectively, of a hoisting tackle assembly 19 which is pivotally supported by the collar 50 on the crossarm 27 of the auxiliary hoisting frame. The other end of the hoisting line is, of course, secured to either the stationary block or the traveling block of the hoisting tackle. It will thus be apparent that the traveling block 8d and the stationary block or pulley P comprise a block and tackle apparatus which when controlled by the hoisting line is capable of lifting a considerable load, the mechanical advantage of which is determined by the number of movable strands of hoisting line between the traveling block and the stationary block of the hoisting tackle. Of course, while only a single sheave is shown supported on the crossarm 27, any number of sheaves may be provided as desired. It will also be noted that when an attachment line 85 is secured to the traveling block 80 and attached to a load, the weight of the load when lifted by the hoisting tackle is supported primarily by the auxiliary hoisting frame 20', the movable boom carry ing only a small part of the load, thereby making possible the loading and unloading of extremely heavy loads with a relatively light weight hoisting apparatus, such as the dragline hoist 11 shown.

Control tackle or load lines G extend from the draw works of the vehicle V to blocks 90 mounted on the upper end pontion of the hoisting frame 20 adjacent the upper end of the rear reinforcing structure 20b for supporting the frame in its inclined position from the vertical while lifting loads, and for adjusting, in cooperation with the boom and guide 6%, the upright position of the auxiliary frame so that the upper end of said frame may be swung to a position overlying a load whereby the cable and hoisting lines and the movable blocks of the hoisting tackle may be lowered directly to the load L to lift the same. It will further be seen that the control tackle or load lines provide the principal means for supporting the auxiliary frame in its load lifting position, and that the slidable guide 60 pivotally carried by the upper end of the swingable boom of the hoisting device or dragline coacts with the load lines or tackle to shift the position of the upper end of the auxiliary frame about the pivotal support at the lower end of the frame, from the position shown in full lines in FIGURE 1 to the position shown in dotted lines in that figure, for example, whereby the load lifted by the hoisting tackle and suspended from the upper end of the auxiliary frame may be shifted laterally or horizontally from a position on a vehicle, or the like, to a position on the ground or vice versa. These load or tackle lines, with the auxiliary frame, therefore provide the principal support for lifting the load, since substantially the full load is applied to the upper end of the auxiliary frame and only a small portion thereof is transferred through the hoisting line of the hoisting tackle to the outer end of the boom. The guide 60, of course, assists to some extent, the supporting of the upper end of the auxiliary frame; but, principally, provides a stay, cooperating with the control tackle or load lines G for maintaining the frame in the position over the load, and in addition, a means for shifting the upper end of the auxiliary frame when the same is not under a load. Obviously, the guide 60 and the hoisting line 15 may be used to lift and shift the auxiliary frame 20' in position on the ground or other supporting surface, the boom being adequately strong for this purpose.

It will therefore be seen that a hoisting apparatus is disclosed herein which includes a hoist with a movable boom and an auxiliary hoisting frame separate from the hoist boom but conneotable and cooperable therewith for lifting heavy loads.

It will also be seen that a new and improved auxiliary hoisting frame is disclosed herein which is interconnectable with the movable boom of a hoist and cooperable therewith for supporting a load so as to' enable the hoist to lift loads which exceed the normal lifting capacity of its boom when operating independently of the auxiliary hoisting frame.

It will also be seen that a new and improved method is disclosed herein for lifting and moving heavy loads with a relatively light weight hoist by supporting the greater part of the load on an auxiliary hoisting frame and controlling the movements of the auxiliary hoisting frame by the hoist so as to lift and move the load as desired.

The foregoing description of the invention is explanatory only, and changes in the details of the method described and construction illustrated may be made by those skilled in the art, within the scope of the appended claims, without departing from the spirit ofthe invention.

What is claimed and desired to be secured by Letters Patent is:

1. An auxiliary hoisting apparatus for use with a hoist having a movable boom and a hoisting line supported at the end of the boom comprising: an elongate auxiliary hoisting frame adapted to be mounted for pivotal movement about one end in a substantially vertical plane; means for pivotally moving said auxiliary frame in said substantially vertical plane about said one end, said moving means being adapted to maintain and support said frame in its various pivotal positions in said vertical plane about said one end; and means for attaching a load to said hoisting line and supporting the load on said auxiliary hoisting frame whereby a load may be selectively raised and lowered by said hoisting line while supported by said auxiliary hoisting frame and whereby said load may be shifted laterally while supported by said auxiliary frame by pivotal movement of said auxiliary frame about said one end.

2. A hoisting apparatus for use with a hoist having a pivotal boom, a hoisting line reeved about a pulley supported on the end of the boom, and a draw means for said line comprising: an elongate auxiliary hoisting frame, said auxiliary hoisting frame being adapted to be pivotally mounted about one end; means adapted to interconnect the auxiliary hoisting frame and said boom for rendering them pivotally movable together; said auxiliary hoisting frame being pivotally movable about said one end and said boom being pivotally movable about its pivotal mounting; said auxiliary hoisting frame and said boom being interconnected at their free swingable ends opposite their 7 pivotal mountings for cooperable movement with respect to each other; and hoisting tackle supported by said auxiliary hoisting frame, said hoisting line constituting the tackle fall of said hoisting tackle whereby a load attached to the hoisting tackle and lifted by said hoisting tackle through operation of the hoisting line draw means is supported by the auxiliary hoisting frame and said boom and whereby said load may be moved horizontally or laterally by swinging pivotal movement of said boom and said auxiliary hoisting frame.

3. An auxiliary hoisting apparatus for use with a dragline hoist having a pivotal boom, a hoisting line reeved about a pulley supported on the end of the boom, and a draw means for said line comprising: an auxliary hoisting frame adapted to be mounted for pivotal movement in a substantially vertical plane; means for pivoting said auxiliary hoisting frame in said substantially vertical plane; means interconnecting said auxiliary hoisting frame to the pivotal boom of a dragline hoist for rendering them pivotally movable together whereby said auxiliary hoisting frame is steadied by said boom; and means for attaching a load to said hoisting line and supporting said load on said auxiliary hoisting frame whereby a load may be selectively raised or lowered by said hoisting line draw means and displaced laterally by pivotal movement of said auxiliary hoisting frame.

4. An auxiliary hoisting apparatus for use with a hoist having a pivotal boom, a hoisting line, and a draw means for said hoisting line comprising: an auxiliary hoisting frame adapted to be mounted for pivotal movement in a substantially vertical plane, means for pivoting said auxiliary hoisting frame in said substantially vertical plane; and means for attaching a load to said hoisting line and supporting said load on said auxiliary hoisting frame whereby a load may be selectively raised or lowered by said hoisting line draw means and moved laterally by pivotal movement of said auxiliary hoisting frame.

5. An auxiliary hoisting apparatus for use with a hoist having a pivotal boom, a. hoisting line, and a draw means for said hoisting line comprising: an auxiliary hoisting frame adapted to be mounted for pvotal movement in a substantially vertical plane, means for pivoting said auxiliary hoisting frame in said substantially vertical plane; means for interconnecting said auxiliary hoisting frame to the pivotal boom of a movable hoist whereby said boom and auxiliary hoisting frame are pivotally movable together and said frame is steadied by said boom; and

means for attaching a load to said hoisting line and supporting said load on said auxiliary hoisting frame whereby a load may be selectively raised or lowered by said hoisting line draw means and moved laterally by pivotal movement of said auxiliary hoisting frame.

6. An auxiliary hoisting apparatus for use with a hoist having a pivotal boom, a hoisting line supported by said boom, and a draw means for said hoisting line comprising: an auxiliary hoisting frame adapted to be mounted for pivotal movement in substantially vertical plane, said auxiliary hoisting frame comprising a pair of elongate tubular members; means for interconnecting said auxiliary hoisting frame to the pivotal boom of a movable hoist for rendering them pivotally movable together, said interconnecting means comprising a guide member having a pair of elongate slide members slidably receivable respectively in respective ones of said tubular members and means for pivotally connecting said guide member to said boom; and means for attaching a load to said hoisting line and supporting said load on said auxiliary hoisting frame whereby a load may be selectively raised or lowered by said hoisting line draw means and moved laterally by pivotal movement of said auxiliary hoisting frame.

7. An auxiliary hoisting apparatus for use with a hoist having a pivotal boom, a hoisting line supported by said boom and a draw means for said hoisting line comprising: an auxiliary hoisting frame adapted to be mounted for pivotal movement in a substantially vertical plane, said auxiliary hoisting frame comprising a pair of elongate tubular members; means for pivoting said auxiliary hoisting frame in said substantially vertical plane; means for interconnecting said auxiliary hoisting frame to the pivotal boom of a movable hoist for rendering them pivotally movable together, said interconnecting means comprising a guide member having a pair of elongate slide members slidably receivable respectively in respective ones of said tubular members and means for pivotally connecting said guide member to said boom; and means for attaching a load to said hoisting line and supporting said load on said auxiliary hoisting frame whereby a load may be selectively raised or lowered by said hoisting line end in a substantially vertical plane; means for interconnecting said auxiliary hoisting frame to the pivotal boom of a movable hoist for rendering them pivotally movable together; a hoisting tackle comprising a first pulley block suspended from said auxiliary hoisting frame and a second pulley block movable toward and away from said first pulley block, said hoisting line being reeved about the pulleys in the blocks of said block and tackle apparatus and fixed to one of said blocks; and means for attaching a load to the second pulley block of said hoisting tackle whereby a load attached to said second pulley block may be lifted and lowered by said hoisting tackle through operation of said hoisting line draw means and moved laterally by pivotal movement of said auxiliary hoisting frame, said load being jointly supported by said boom and said auxiliary hoisting frame.

9. An auxiliary hoisting apparatus for use with a hoist having a movable boom, a hoisting line reeved about a fixed pulley mounted on the movable end of the boom, and a draw means for said line, said auxiliary hoisting apparatus comprising: an elongate auxiliary hoisting frame adapted to be mounted for pivotal movement about one end in a substantially vertical plane, said auxiliary hoisting frame comprising a pair of elongate tubular members'dis posed in parallel; means for interconnecting said auxiliary hoisting frame to the pivotal boom of a dragline hoistfor rendering them movable together, said interconnecting means comprising a guide member having a pair of elongate slide members disposed in parallel and slidably receivable respectively in respective ones of said tubular members and means for pivotally connecting said guide member to said boom; a hoisting tackle comprising a first pulley block suspended from said auxiliary hoisting frame and a second pulley block movable toward and away from said first pulley block, said hoisting line being reeved about the pulleys in the blocks of said block and tackle apparatus and fixed to one of said blocks; and means for.

attaching a load to the second pulley block of said hoisting tackle whereby a load attached to said second pulley block may be lifted and lowered by said hoisting tackle through operation of said hoisting line draw means and moved laterally by pivotal movement of said auxiliary hoisting frame, said load being jointly supported by said boom and said auxiliary hoisting frame.

10. In an auxiliary hoisting apparatus for use with a. hoist having a pivotal boom and means for controlling the pivotal movement of said boom: an elongate auxiliary hoisting frame, said auxiliary hoisting frame being pivotally mounted about one end; means interconnecting the auxiliary hoisting frame and said boom for rendering them movable together whereby pivotal movement of said boom is in correspondence with pivotal movement of the auxiliary hoisting frame; and hoisting tackle mounted on Cal said auxiliary hoisting frame and adapted to be attached to a load whereby a load attached to said tackle may be moved horizontally by pivotal movement of said auxiliary hoisting frame and said boom upon pivotal movement of said frame and said boom about their pivoted ends.

ll. An auxiliary hoisting apparatus for use with a hoist having a movable boom comprising: an elongate auxiliary hoisting frame adapted to be mounted for pivotal movement about one end in a substantially vertical plane; means for pivotally moving said auxiliary frame in said substantially vertical plane, said moving means being adapted to support said frame when said frame is inclined from the vertical; and means for attaching a load to said auxiliary hoisting frame whereby said load may be shifted by pivotal movement of said auxiliary frame in said substantially vertical plane.

12. In a hoisting apparatus for use with a hoist having a pivotal boom and means for controlling the pivotal movement of said boom; an elongate auxiliary hoisting frame, said auxiliary hoisting frame being pivotally mounted about one end; means for moving said auxiliary frame in controlled pivotal movement, said moving means being adapted to support said frame in its pivotal positions; means interconnecting the auxiliary hoisting frame and said boom for rendering them movable together whereby pivotal movement of said boom is in corre-' spondence with pivotal movement of said auxiliary hoisting frame; and means for attaching a load to said auxiliary hoisting frame whereby said load may be moved by pivotal movement of said auxiliary hoisting frame.

13. In a hoisting apparatus for use with a hoist having a pivotal boom, an elongate auxiliary hoisting frame adapted to be pivotally supported at one end; means for interconnecting said auxiliary hoisting frame to the pivotal boom of a dragline hoist for rendering them movable together whereby pivotal movement of the boom corresponds with pivotal movement of the auxiliary hoisting frame; said pivoting means including control tackle connected between said hoist and the upper swingable end of said auxiliary frame for supporting said frame in adjusted positions with respect to the pivotal mounting of said frame on said one end; and means for attaching and supporting a load on said auxiliary hoisting frame whereby pivotal movement of said boom and auxiliary hoisting frame results in movement of said load. I

14. In a hoisting apparatus for use with a hoist having a pivotal boom, a hoisting line, and means for controlling the pivotal movement of said boom: an elongate auxiliary hoisting frame, said auxiliary hoisting frame being pivotally mounted about one end; means interconnecting the auxiliary hoisting frame and said boom for rendering them movable together whereby pivotal movement of said boom corresponds with pivotal movement of the auxiliary hoisting frame and said boom for rendering to said hoisting line and supporting said load on said auxiliary hoisting frame whereby a load may be raised and lowered by said hoisting line and moved in lateral directions by pivotal movement of said auxiliary hoisting frame.

15. In combination with a hoist having a boom pivotally mounted at one end, a hoisting line reeved about a pulley supported on the end of the boom, a draw means for said line, and means for controlling the pivotal movement of said boom; an elongate auxiliary hoisting frame adapted to be pivotally supported on one end of said frame; means for interconnecting said auxiliary hoisting i6 frame to the pivotal boom of a dragline hoist for rendering them movable together; a hoisting tackle supported by said auxiliary hoisting frame, said hoisting tackle including a first pulley supported by said auxiliary frame and a second pulley movable with respect to said first pulley, said hoisting line being reeved about the pulleys of said hoisting tackle and fixed to one of said pulleys whereby a load attached to the hoisting tackle may be lifted by said hoisting tactile through operation of the hoisting line draw means supported by said auxiliary hoisting frame and said boom.

16. in combination: a hoist having a boom pivotally mounted at one end, a hoisting line, and means for controlling the movements of said boom and hoisting line; an auxiliary hoisting frame adapted to be mounted for pivotal movement in substantially vertioal plane; means for pivotally moving said frame in said substantially vertical plane, means for interconnecting said auxiliary hoisting frame to the pivotal boom of a hoist for rendering them pi-votally movable together; and means for attaching a load to said hoisting line and supporting said load on said auxiliary hoisting frame whereby said load may be selectively raised and lowered by said hoisting line and supported by said auxiliary frame when moved v in lateral directions by pivotal movement of said auxiliary frame in said substantially vertical plane.

17. In a hoisting apparatus for use with a hoist having a pivotal boom and means for controlling the pivotal movement of said boom; an elongate auxiliary hoisting frame, said auxiliary hoisting frame having means for pivotally supporting its lower end; means for moving said auxiliary frame in controlled pivotal movement about said means supporting said lower end thereof, said moving means including control line means from said hoisting device secured to the upper end of said auxiliary frame for supporting said auxiliary frame in its adjusted positions about the pivotal mounting thereof; and means interconnect ng the auxiliary hoisting frame and said boom for rendering them movable together whereby pivotal movement of said boom is in correspondence with pivotal movement of said auxiliary hoisting frame; and hoisting means extending from said hoist to said auxiliary hoisting frame for lifting a load by means of said hoisting means and frame, said pivotal mounting of said auxiliary hoisting frame providing for horizontal movement of said load.

18. An auxiliary hoisting apparatus for use with a hoist having a draw-works and movable boom, said apparatus comprising: an elongate auxiliary hoisting frame adapted to be mounted independent of the hoist for pivotal movement about its lower end in a substantially vertical plane; control means for moving said auxiliary frame in said substantially vertical plane comprising control tackle means from said hoist draWWOIlCS to the upper end portion of said auxiliary frame for supporting and moving said auxiliary frame in adjusted positions about the lower end thereof, and means interconnecting the free ends of the boom of said hoist lWl'th the auxiliary frame, whereby said auxiliary frame may be moved to and supported in adjusted positions in said substantially vertical plane by said control means; and means for supporting a load from the upper end of said auxiliary hoisting frame whereby said load may be lifted on said auxiliary frame.

References Cited in the file of this patent UNITED STATES PATENTS 2,941,685 McOune June 21, 1960 'UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No. 3,104,764 September- 24 1963 John B., Templeton It is hereby certified that error appears in the above numbered patent req'iiring correction and that the said Letters Patent should read as corrected below.

Column 9, line 55, strike out "auxiliary hoisting frame and said boom for rendering" and insert instead M auxiliary hoisting frame; and means for attaching a load Signed and sealed this 21st day of April 1964.

(SEAL) Attest: EDWARD J. BRENNER ERNEST W SWIDER Attesting Officer Commissioner of Patents 

1. AN AUXILIARY HOISTING APPARATUS FOR USE WITH A HOIST HAVING A MOVABLE BOOM AND A HOISTING LINE SUPPORTED AT THE END OF THE BOOM COMPRISING: AN ELONGATE AUXILIARY HOISTING FRAME ADAPTED TO BE MOUNTED FOR PIVOTAL MOVEMENT ABOUT ONE END IN A SUBSTANTIALLY VERTICAL PLANE; MEANS FOR PIVOTALLY MOVING SAID AUXILIARY FRAME IN SAID SUBSTANTIALLY VERTICAL PLANE ABOUT SAID ONE END, SAID MOVING MEANS BEING ADAPTED TO MAINTAIN AND SUPPORT SAID FRAME IN ITS VARIOUS PIVOTAL POSITIONS IN SAID VERTICAL PLANE ABOUT SAID ONE END; AND MEANS FOR ATTACHING A LOAD TO SAID HOISTING LINE AND SUPPORTING THE LOAD ON SAID AUXILIARY HOISTING FRAME WHEREBY A LOAD MAY BE SELECTIVELY RAISED AND LOWERED BY SAID HOISTING LINE WHILE SUPPORTED BY SAID AUXILIARY HOISTING FRAME AND WHEREBY SAID LOAD MAY BE SHIFTED LATERALLY WHILE SUPPORTED BY SAID AUXILIARY FRAME BY PIVOTAL MOVEMENT OF SAID AUXILIARY FRAME ABOUT SAID ONE END. 